Improvement in gates



G. MCKNIQHT. 'A Automatic Gate.

Patented Jan;V 29. 1867.v

v Wfeew.'

KFETERS. PHOTO'UTHOGRAPHER, WASHXNGTON. Cv

Y @with :taire stmt ffies GEORGE MCKNIGHT, or Hannon, NEW YORK. ,Leners Patent No. 61,676, ma Jana@ 26, 1667.

IMPROVEMENT nv GATES.

TO ALL WHOM IT MAY CONCERN:

-Be it known that I, GEORGE MCKNIGIIT, of'llebron, in the county of Washington, and State of New York, have invented a new and useful Improvement in Gates; and I do hereby declarethat'the following is a full,

clear, and exact description thereof, which will enable others skilled in the art to make and use the same, A

reference being had to 'the accompanying drawings forming part of this 'speeiiicatiom in which- Figure 1 is a rear end View of my improved gate when raised or shut.

Figure 2 is a vertical longitudinal section of' the same taken through the line a: fr, iig. 1.

Figure 3 is the 4same view as iig. 2, but showing the gate lowered or opened, v

Similar lettersof reference indicate like'parts.

My invention has for its object to furnish an improved gate, simple in construction, readily operated, and which, when lowered or opened, shuts down ventirely out ofthe way. I

And it consists, rst,vin the combination o f the gate, constructed ashereinafter described, with the framework or planking that formsthe ground-frame of the gate; and second, in the combination and arrangement ofthe levers, connecting-rods, uprightframe, and inclines with each other, with the gate, and with the groundframe or planking upon which the gate rests. I Y

Ais theground-fralne or planking that supports the gate. This frameworkuor planking is in the'form of a double inclined plane, havinga longitudinal openingvalong its ridge or highest part', of a depth equal to the united breadth of all the horizontal bars of the gate, and 0f a breadth `equal t`o the thickness of the gate-frame. When the gate is placed over a trench orsditch, the frame or planking A rests upon sills B, extending Aacross 'said trench or ditch. In other situations the frame or planking may rest upon the ground or upon a stone foundation prepared for it. C is the gate, the length, height, and size of the timbers of which will depend upon the circumstances of each case. '-'lhe drawings represent a gate eleven feet long and four feet high, and the other pants will bc described in"v proportion with said dimensions. The horizontal bars c1 of the'gate C are pivoted at cach end betweentwo vertical strips or bars er and c3. These bars may be. kept apart, so that they will not cramp the ends of the horizontal bars cyby blocks c4, of such a Shaper/and size that they will not' interfore with the movement-of said bars. The lower end of the bars c2 and cB are pivoted to the framework or planking A at the lower edge of the opening, between the parts a and a2 thereof, so that the gate when opened may fold, down into said opening and be wholly out of the way of the passing vehicle. D are posts or standards attached to the framework or planking A atthe forward endlof the gate C, to sustain the said forward end oftheV gate, when open, against side pressure, and which at thesametime serve as guides to the gate While being opened and closed. E is' a vertical frame,lthe lower ends of the. tw central posts e1 of which are attached to the framework or planking A, at the rear end of the gate C ,and the lower ends' ofthe two outer posts e2 are attached to the framework or plankin'g Anear its outer edges, as shown in iig.. ,1. ".lhe upper ends of the posts c and eL are connected and held in their proper relative positions bythe cross-beam e3, as shown; F are levers twelve feet in'l'ength, pivoted in slots in the upper ends of the outer posts e2 of the frame E. The outer or free ends of these levers stand at,the height'of seven feet above the roadway when the gate is closed, and when the gate is open rise to the heightof eleven feet .above saidroadway. Tol the said outer ends of the' levers F are pirated the upper ends'of the handles G,the lowerlends of which hang down so that the levers may be operated and the gate opened or closed either from the ground or from a passing vehicle. To the inner ends of the Vlevers F arepivoted the upper .ends of the connecting-rods'H, the lowerends of which are pivoted tov the vertical `bars c3 ofthe gate C, near their lower ends, as Ashown in figs. 2 and 3. I are inclines attached to the outer sides of the posts el to guide the 'inner ends of the levers F, while operating, into such a position that the vrods Hmay operate advantageously upon the gate C inI opening and closing it. It should also be observed that' the levers F should be pivoted in such a position that their outer ends may project so far over the roadway that the handles G can be easily reached fromra vehicle upon the said roadway.

vBy this epnstruction and arrangement of the di'erent parts ot" the gate, when approaching thel said gate' from either side, by raising the outer end ofthe lever F by means of the handle G, the gate C will be opened or`folded down intowthe opening between the parts al and a2 of the ground-frame or planlcing A; and after passing through the gateway, by drawing down the outer end of' Athe other lover F by means of the other handle Gr, the gate will be. raised o1' closed behind the vehicle.

What I cla-im as new', andde'siro to secure by Letters Patent, isv 1.' The combination of the gate C, when oonstructeci as herein described, with the ground-frame or planking A, substantially as and for the purpose set forth; and

2. The combination and arrangement of the levers F, connecting-rods H, upright frame E, und inciines I, with each other, with the gate C, :mdwith the ground-frame or planking A, subsfztntiallyras herein described and ,for the purpose set forth.

' GEORGE MCKNIGHT.

Witnesses:

THOMAS MAHAFFY, JOHN A. MCKNIGHT. 

